Gas-burner



(No Model.)

N. PETERS PholLiihogrnphur. Washington. D.C.

@witten rares ATENT FFICEo BRUNO MARTIN, OF EAST SAGINAV, MICHIGAN.

GAS-BURNER.

SPECIFICATION forming part of Letters Patent No. 312,367, dated February 17, 1885.

Appneanon naa July es, 1se4j (No model.)

To all whom it may concern.-

Be it known that I, BRUNO MARTIN, of East Saginaw, in the county of Saginaw and State of Michigan, have invented new and useful Improvements in Gas-Burners; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, which form a part of' this specification.

This invention relates to an improvement in gas-burners of that kind used for heating purposes, and generally designated as Bun1 Een burners.77

The invention consists in the arrangement and construction of the parts for obtaining perfect combustion with a steady flame and ease ot' adjustment of the air-supply, whatever the pressure, quality, or quantity of the gas consumed may be.

Figure l is a vertical central section of my burner. Fig. 2 is a detatched sectional perspective or" the gasburncr.

A is the mixing-tube, into which the gas is delivered near the bottom by the delivery-pipe I3, which terminates in a nipple, C, provided upon its upper side with a sutlicient number ot' small perforations for the escape of the gas. Secured to the under side of the nipple is the guide-rod D, upon which is sleeved the valve E, for the purpose of regulating the amount ot' air allowed to enter the mixing-tube, said valve being adjusted by means ot' the thumbscrew F, threaded upon the guiderod D.

G is afunnelshaped shield surrounding the lower end ot' the mixing-tube. It is perforated upon the sides with an imperl'orate bottom. This arrangement etfectually prevents any llickering oi' the llame, and mixes the air more readily with' the gas. The mixing-tube A connects on'top with the rosette H, which presents to the air and gas rising in the mixing-tube a convex face, a, which acts as a ready dellector toward the outer edges of the rosette, and also assists the complete mixing of the gas and air.` The outer edges of the rosette are provided with ringapertures concentrically arranged, each of which produces a separate ring-llame.

To allow the ring-apertures to be punched out of the metal plate or plates forming the rosette without detachin g the parts, each ringaperture is formed by a series of slits with small webs left between them; but these webs are so arranged that they alternate in the different rings, whereby a solid dame is produced.

The ring-apertures are arranged upon dit.- ferent planes and with different diameters, the ring-aperture with the largest diameter being upon the lowest plane. This arrangement brings the tips of the ring-flame upon the lower plane in contact with the ring-flame from the next higher aperture, thus helping the smokeless combustion of the outer and lower flames, which are more liable to smoke.

The arrangement of the rosette herein described prevents by its form a-'nd arrangement ot' apertures the burning within of the gas entirely except when relighting the gas quickly before the parts have become cooled off. In this case the valve E has to be closed before lighting, after which it may then again be gradually opened tothe desired degree.

That I claim as my invention isl. In a gasburner for heating, the rosette H, provided with the convex dellecting-facea over the mixing-tube, and conceutrieally apertured upon its outer rim, said apertures being upon different planes with different dialneters, and with the apertures of the largest diameter upon the lowest plane, substantially as and for the purposes described.

2. In a gasburner for heating, the valve E, centrally sleeved upon a guiderod below the open end of the mixing-tube, and provided with a thumb nut for vadjusting it upon said guide-rod, substantially as and for the pur poses described.

3. The gas-burner herein described, consisting of the mixing-tube A, provided with delivery -pipe B, nipple C, within said tube, guide-rod D, secured to said nipple, valve E, sleeved upon said rod, the rosette H, connected with the upper end of the tube A. andthe shield G, surrounding the lower end of said tube, substantially as and for the purposes specified.

BRUNO MARTIN.

Vitnesses:

H. S. SPRAGUE, E. SoULLY. 

